Evaluate
\frac{644195161\pi }{2500}\approx 809519.514110278
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\pi \times \frac{1030712.2576}{4}
Calculate 1015.24 to the power of 2 and get 1030712.2576.
\pi \times \frac{10307122576}{40000}
Expand \frac{1030712.2576}{4} by multiplying both numerator and the denominator by 10000.
\pi \times \frac{644195161}{2500}
Reduce the fraction \frac{10307122576}{40000} to lowest terms by extracting and canceling out 16.
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